Yeah, sounds like what I just found:

What are the non-custodial or self-hosted wallet requirements in the European Union?

For transactions exceeding 1,000 EUR with self-hosted wallets, European CASPs must collect the required originator and beneficiary information and comply with the following additional wallet verification obligations:

The originator CASP must verify if the wallet is owned or controlled by the originator customer when sending a transfer exceeding 1,000 EUR,

The beneficiary CASP must verify that the beneficiary customer owns or controls the originating wallet when receiving a transfer exceeding 1,000 EUR. [3]

This means wallet ownership verification requirements apply to first-party transactions to/from self-hosted wallets exceeding EUR 1,000.

‍